Went with the RIO Powerflex, here is some info for any interested parties.....

It is a high tech co-polymer tippet with excellent knot strength and PTFE coating for abrasion resistance and elongation (stretch) averaging about 26%. This tippet is used for all species, with the light gray providing superb camouflage in the water. This is the "standard RIO tippet".

Was going to mention RIO's power flex. Good line. Being the thrifty guy that I am I also like Maxima in 2 lb/ 4 lb for dropper fly. Can pick up 250 yd spool for $7.00 . I use the 10 lb for steelhead fishing.
Good durable line